Bobbin holder



. p 3, 1929- J. J. PICHETTE 1,726,764

BOBBIN HOLDER Filed June 8, 192'? Film? ulliunwz A TTORNEY.

Patented Sept. 3, 1929.

UNITED STATES PATENT OFFICE.

JOHN J'. PICHETTE, OF WHITINSVILLE, MASSACHUSETTS, ASSIGNOR TO WHITIN MA- CHINE WORKS, F WHITINSVILLE, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

BOBBIN HOLDER.

Application filed June 8,

This invention has for its object the production of novel and simple bobbin holding means on rotatable spinning, twisting or winding spindles whereby an effective driving engagement is easily secured and maintained between holding members connected with the spindle and the yarn receiver or bobbin when applied thereto.

The various novel features of my inve11- tion will be fully described in the subjoined specification and particularly pointed out in the following claims.

In the accompanying drawings, Figure 1 is a partial side elevation of a rotatable spindle provided with a bobbin holding means embodying my invention, a bobbin being shown in section in normal operating position thereon. Figure 2 is a partial sectional elevation of my bobbin holding means on line 22 of Figure 3. Figure 3 is a sectional plan on line 38 of Figure 2. Figure 1 is an enlarged vertical section on line 4 1 of Figure 5 showing the construction of the resilient actuating member. Figure 5 is a plan of the same.

In the drawings 10 represents a spindle blade on which is fixedly mounted a driving whirl 11, connected to the spindle blade by a depending sleeve 12 having its upper end enlarged at 13 to form a bobbin rest the top of which being provided with an annular recess 1a, concentric with the spindle. A cylindrical sleeve 15, preferably integral with the bobbin rest, projects upward from the bottom of the recess 14 forming a support for a resilient ring 16 made of sheet spring steel having a plurality of radial fingers 17 punched and bent outwardly from the periphery of the ring. The fingers are adapted to abut against the inner sides of a corresponding plurality of segmental bobbin holding members 18 the lower ends of which are loosely seated in the recess 14 while the upper ends are limited in their outward movements by being confined in an annular recess 19 in lower part of the retaining collar 20 fixed to the spindle blade. The resilient ring 16 is loosely maintained in position on its supporting sleeve 15 by the collar 21 having a driving fit on the spindle blade.

.In operation when there is no bobbin in position the segmental bobbin holding members stand as shown in Figure 2 held in their outmost radial position by the pressure of the spring fingers 17 abutting against the 1927. Serial No. 197,365.

inner sides of the holding members 18. l/Vhen the bobbin is in position the bobbin holding members exert a gripping contact with inner bore of the bobbin 22 due to the resiliency of the abutting fingers against the holding members.

My invention possesses simplicity, economy of construction, and efliciency in operation, the parts being few in number and readily assembled.

I claim:

1. A rotatable spindle comprising a blade, a bobbin rest fixedly connected to said blade and having an annular recess in the top of said rest, concentric with the blade, a sleeve integral with the rest, projecting upward from said recess, and surrounding the blade, a plurality of segmental bobbin holding members seated in said recess, a resilient member loosely mounted on said sleeve, fingers integral with said resilient member abutting against each bobbin holding member, and a collar fixedly connected to the blade for maintaining the resilient member on its sleeve.

2. A bobbin holder for a spindle having a rotatable blade and having a whirl mounted thereon and having a concentric recess in its upper face, said bobbin holder comprising a plurality of segmental clutch members seated at their lower ends in said recess and pivotally movable outward about said lower ends as axes, a casing member mounted on said blade and having a depending portion engaging the upper ends of said segmental clutch members to limit outward movement thereof, and an annular member mounted within said clutch members and held concen ric with said blade, said annular member having integral resilient fingers projecting outwardly therefrom and each engaging one of said segmental clutch members and exerting yielding outward pressure thereon.

3. A bobbin holder for a spindle having a rotatable blade and having a whirl mounted thereon and having a concentric recess in its upper face, said bobbin holder comprising a plurality of segmental clutch members seated at their lower ends in said recess and pivotally movable outward about said lower ends as axes, a casing member mounted on said blade and having a depending portion engaging the upper ends of said segmental clutch members to limit outward movement thereof, and an annular member mounted on said whirl within said clutch members and held concentric with said blade, said annular member having integral resilient fingers projecting upwardly and outwardly therefromand each engaging one of said segmental clutch members and exerting yielding outward pressure thereon.

4-. A bobbin holder for a spindle having a rotatable blade and having a whirl mounted thereon and having a concentric recess in its upperface, said bobbin holder comprising a plurality of segmental clutch members seated at their lower ends in said recess-and pivotally movable outward about said lower ends as axes, a casing member mounted on said blade and having a depending portion engaging the upper ends of said segmental clutch members to limit outward movement thereof, said whirl having a central upward projection, an annular member mounted on said central projection, and meansto prevent upward displacement of said member, said annular member having integral resilient fingers projecting outward therefrom and yieldingly engaging the inner faces of said clutch members.

In testimony whereof, I have signed this specification;

JOHN J. PICHETTE. 

